Slain MIT police officer identified as 26-year-old Sean Collier

Associated Press

9:11 AM, Apr 19, 2013

12:30 PM, Apr 19, 2013

Sean Collier

Middlesex District Attorney

Copyright: CNN

CAMBRIDGE, Mass. (AP) - The Massachusetts Institute of Technology police officer said to have been shot and killed by the Boston Marathon bombing suspects has been identified as 26-year-old Sean Collier.

The Middlesex district attorney's office says Collier was a Somerville resident who had worked at MIT since January 2012. Before that, he was a civilian employee of the Somerville Police Department.

MIT Police Chief John DiFava says Collier was a dedicated officer who was liked by his colleagues and the MIT community.